After a number of live action trailers for Metro: Last Light, THQ has released a brand new gameplay trailer that gives us a better idea of what to expect from the upcoming survival horror/FPS game.

"IT IS THE YEAR 2034. Beneath the ruins of post-apocalyptic Moscow, in the tunnels of the Metro, the remnants of mankind are besieged by deadly threats from outside – and within.

Mutants stalk the catacombs beneath the desolate surface, and hunt amidst the poisoned skies above. But rather than stand united, the station-cities of the Metro are locked in a struggle for the ultimate power, a doomsday device from the military vaults of D6. A civil war is stirring that could wipe humanity from the face of the earth forever.

As Artyom, burdened by guilt but driven by hope, you hold the key to our survival – the last light in our darkest hour…

In this sequence, Artyom is forced into an alliance with the young Red Line officer named Pavel as they attempt to cross the hostile surface of post-apocalyptic Moscow in a bid to reach the relative safety of the legendary station city, The Theatre.